mr. obama by name. >> we should not continue on the same path, but it's time to take a new path, bold aggressive change. >> reporter: meanwhile, paul ryan and his wife jana spent halloween in their hometown in wisconsin taking their kids trick-or-treating. a maris poll shows a tightening in key states, the president still holds leads in three of them. in iowa, president obama maintains a six-point lead over mitt romney, down from eight two weeks ago. in wisconsin, romney has cut the president's lead in half, he now trails by three points. and in new hampshire, it's basically a dead heat. the president at 49%, romney with 47%. the granite state will be mitt romney's final stop before election day. >> reporter: the schedule tells you everything, the president four times in ohio. he'll be multiple times in wisconsin and iowa these last four days. only one stop each in florida and new hampshire and nevada, matt. >> chuck todd at the white house, let me remind our viewers, election night cover